The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1978
Filed:
Jan. 30, 1976
Applicant:
Inventors:
Saverio Russo, Genoa, IT;
Estella Bianchi, Genoa, IT;
Alberto Ciferri, Genoa, IT;
Barbara Valenti, Genoa, IT;
Giorgio Bonta, Genoa, IT;
Assignee:
Consiglio Nazionale Delle Richerche, Rome, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ;
Abstract
A process by which transformations of linear polyamides are performed at temperatures below the melting and decomposition temperatures of pure polyamides, wherein anionic polymerization of dry lactams with 4 to 12 carbon atoms is performed in the presence of one or more lithium halides, in amounts ranging from 1 to 10% in weight of the polymer.